Improvement in flour-bolts



.UNITED iranes* PATENT OFFICE.

GASPAR T: RICHEY, OF HASTINGS, ASSIGNOR TO OSCAR kS. HADLEY AND LOYAL E. KNAPPEN, OF SAME ILACE,'AND WILLIAM J. STUART, OF GRAND RAPIDS, MICHIGAN, ONE-FOURTH TO EACH.l

IMPROVEMENT INl FLOUR-BOLTS.

Specification forming part of Letters Patent N o. 209,!93, dated October 22, 1878 application tiled March 7, 1878.

To all whom it may concern ment in the Construction of Bolts for Flouring- Mills, of which the following is a complete specification, reference being had to the accompanying drawings, forming a part of this specification, and in which- Figure lis a longitudinal sectional view of my improved machine; Figs. 2 and 3, opposite side views of the same; Fig. 4, an end view.

Like letters represent like parts in drawing and specification.

A is a hopper, into which the material to` be bolted is conducted, and which is provided with a pivoted division-board, a, by means of which the material can be cut off from either one of the flour-chests C when desired.

B B are rollers for passing the material into the bolt. C Cv are hour-chests containing the sieves, Ste., for bolting.

D D are sieves, any number of which are set obliquely in the flour-chests C C, the iirst or uppermost of which slants outward and the next inward, and so on alternately; These sieves may be set in grooves, or may rest upon piv ots, or may be held by any other device, and may be so arranged as to make them capable of being drawn out and changed or reversed, so as to provide for sieves of different degrees Aof tineness, or for any other purpose. They may be constructed of a frame covered with bolting-cloth.

EE are chutes or cant-boards, placed one under each sieve in such a manner as to convey the flour bolted through it to the spout or conductor F, whence'it is conveyed to any d esired part of the mill.

Sieves D D are so placed that the upper end of each shall rest against the side of the chest C, and are made short enough to leave a space between the lower end and the other side of the chest, for the purpose of permitting the unbolted material to pass from one sieve to the other, and inally oil from the last one. These two Hour-chests C C are fastened together by two of their corners being hinged to an upright standard and to each other, or to each other only, by hinge, strap, or other device, and are placed in a frame, G, in such a Uponpthe side of flour-chests C C, opposite the hinge or angle mentioned above', is a shaft or shafts, S, running the entire length ofthe frame G, upon which areeccentries H H, or

a series of such eceentries, for the purpose of agitating Hour-chests C C, which are held against eceentries H H by means of springs I I or other similar device.

Eccentrics H H may be made to operate upon bearings J J or directly upon the chests, having leather or other substance placed at the point of contact to prevent friction. .These eceentries H H may be placed, by any suitable known means-'as a set-screw-at any angle to each other, so as to produce, when only one chest is used, or when the two are fastened rmly together, .as they may be by any suitable known mean s-as a hook and pin--any co1nplex motion desired.

The inclination of sieves DD may be adjusted to any angle from anyportion ofthe mill desired by means of`adj Listing-rods X X, which raise and lower one end of the sieves'at the same time by a simple upward or downward movement, orl may be made to act upon sieves D D by means of screw-threads so made as to be alternately right and left screws, and to adjust all the sieves simultaneously to a greater or less angle at the same time by simply turning the adjusting-'rods X X to right or left.

The advantages of my invention are these: That the machine occupies only about onesixth the space of an ordinary bolt to do the samework, and that it can be constructed at less than one-fifth the cost in labor and material of an ordinary bolt, and will bolt two or l more kinds of material at the same time..

I claim as my invention and desire patentedl. In a flour-bolting machine, the combina hopper provided with feed-rolls B B, and communicating with said Hour-chests, and the shaft S, provided with lche adjustable eecentries or their equivalents,the several parts con structed and relatively arranged to operate substantially as -herein shown and described.

GASPAR T. RICHEY.

Witnesses:

LOYAL E. KNAPPEN, W. D. HAYES. 

